BAT43W-HE3-18

Single Diodes Overview

The BAT43W-HE3-18 is a small signal Schottky diode manufactured by Vishay Semiconductors in the SOD-123 surface-mount package. It features a repetitive peak reverse voltage of 30 V and a continuous forward current rating of 200 mA. The device exhibits a maximum forward voltage of 1000 mV at 200 mA and a reverse recovery time of 5 ns. Electrical characteristics include a leakage current of 0.5 μA at 25 V and a diode capacitance of 7 pF at 1 V. It operates within a junction temperature range of -55 °C to +125 °C and is AEC-Q101 qualified.

Single Diodes Feature Summary

• Features very low turn-on voltage and fast switching capabilities for general purpose applications
• Protected by a PN junction guard ring against excessive voltage such as electrostatic discharges
• RoHS-compliant and AEC-Q101 qualified automotive grade construction

Single Diodes Applications

• General purpose rectification
• Automotive electronics circuits

Single Diodes Procurement Notes

Verify the specific ordering code suffix, as packaging options vary between tape and reel quantities. Confirm that the HE3 designation aligns with required AEC-Q101 qualification standards. Ensure the SOD-123 footprint matches the target PCB layout dimensions. Validate component authenticity through authorized distribution channels.

Single Diodes Selection Notes

Select this component when low forward voltage drop and rapid switching speeds are critical for circuit efficiency. The AEC-Q101 qualification makes it suitable for automotive environments requiring robust ESD protection. Compare electrical parameters against alternative Schottky diodes to ensure compatibility with system voltage and current requirements.

Single Diodes Part Context

This part belongs to the BAT43W series of small signal Schottky diodes from Vishay Semiconductors. The series includes variants like the BAT42W and different packaging codes. These devices are designed for high-speed switching applications where low power consumption and compact surface-mount footprints are necessary.

Single Diodes Replacement Considerations

BAT43W-E3-18

Single Diodes FAQ

What is the function of the PN junction guard ring in this diode?

The PN junction guard ring protects the device against excessive voltage events, such as electrostatic discharges.

How does the HE3 suffix affect the qualification status compared to the E3 suffix?

The HE3 suffix indicates the device is RoHS-compliant and AEC-Q101 qualified, whereas the E3 suffix denotes RoHS-compliant commercial grade.